Yes, I saw that. I thought it was odd to show one passing straight through St Albans and Hatfield. Possibly limitations of the scale - can't show every twist and turn.
Pipelines tend to go through towns. That's why they are there.
That's not to say there may be an element of joining the dots on the Soviet cartography side.
As a boring side-note I was trained to count the number of insulators on East German electricity pylons because that reveals the voltage being transmitted and highlights the high priority targets.